Figure 7
Brewster quasi-BIC theoretical analysis of eigenmodes. (a) iCEMD calculations of eigenmode dispersion relations (solid curves) and half-widths (error bars, up to 30°). (b–d) Numerically calculated (COMSOL) contour maps of electric near-field intensities on a horizontal plane crossing the disks through the center (z = 0) for a 11 × 11 finite square array (lattice period = 12 mm) of dielectric resonator disks, upon excitation with a MD located at the center of the central disk as follows (only shown the central 7 × 7 disk area): (b,c) vertical MD for non-tilted disks, (b) off-resonance (ν = 5 GHz) and (c) at resonance (ν = 5.605 GHz); (d,e) tilted MD at resonance (ν = 5.605 GHz) for equally tilted disks by an angle (d) 10° (ν = 5.605 GHz) and € 30° (ν = 5.555 GHz).
